Abstract

A system and method for image processing are provided. A pre-processed image may be obtained. The pre-processed image may be decomposed into a low-frequency image and a high-frequency image. At least one grayscale transformation range may be determined based on the low-frequency image. At least one grayscale transformation parameter may be determined based on the at least one grayscale transformation range. The low-frequency image may be transformed based on the at least one grayscale transformation parameter to obtain a transformed low-frequency image. A transformed image may be generated by reconstructing the transformed low-frequency image and the high-frequency image.

IPC Classes  ?

• G06T 7/10 - Segmentation; Edge detection
• G16H 30/40 - ICT specially adapted for the handling or processing of medical images for processing medical images, e.g. editing
• G06T 5/10 - Image enhancement or restoration by non-spatial domain filtering

Abstract

A system and method for image processing are provided. A pre-processed image may be obtained. The pre-processed image may be decomposed into a low- frequency image and a high-frequency image. At least one grayscale transformation range may be determined based on the low-frequency image. At least one grayscale transformation parameter may be determined based on the at least one grayscale transformation range. The low-frequency image may be transformed based on the at least one grayscale transformation parameter to obtain a transformed low-frequency image. A transformed image may be generated by reconstructing the transformed low-frequency image and the high-frequency image.

IPC Classes  ?

• G06T 5/00 - Image enhancement or restoration
• G06T 7/10 - Segmentation; Edge detection
• G16H 30/40 - ICT specially adapted for the handling or processing of medical images for processing medical images, e.g. editing
• G06T 5/10 - Image enhancement or restoration by non-spatial domain filtering

Abstract

A method may include obtaining an initial image that is captured by scanning a scan object using the imaging device. The method may also include performing an iteration process including one or more iterations. Each of the one or more iterations may include determining, according to a thickness model, an equivalent thickness associated with the scan object based on a brightness of a first image and the target brightness, determining one or more second exposure parameters corresponding to the equivalent thickness and the target brightness based on the thickness model, and generating a second image by directing the imaging device to scan the scan object based on the one or more second exposure parameters using the imaging device. The first image may be the initial image in a first iteration of the one or more iterations or an image generated in a previous iteration.

Abstract

A system (100) includes one or more storage devices (150) storing a set of instructions and at least one processor (310) in communication with the storage device (150). When executing the instructions, the at least one processor (310) is configured to cause the system (100) to obtain a first operating state of an X-ray imaging device (110), and obtain a first input from a user via a terminal (130), the first input being associated with a second operating state of the X- ray imaging device (110). The at least one processor (310) may further cause the system (100) to determine whether the first input satisfies a switch condition. Upon a determination that the first input satisfies the switch condition, the at least one processor (310) may further cause the system (100) to transmit a first instruction to switch the X-ray imaging device (110) from the first operating state to the second operating state.

IPC Classes  ?

• A61B 6/46 - Arrangements for interfacing with the operator or the patient
• A61B 6/10 - Application or adaptation of safety means

Abstract

A transmission apparatus (300) may include a base assembly (310), a wheel (322), a first cable (323), a second cable (324), and a response assembly (340). The transmission apparatus (300) may be configured to move a component of a medical device.The first cable (323) and the second cable (324) may pass through the wheel (322) for moving a component of a medical device. One end of the first cable (323) may be connected to a clump weight. The other end of the first cable (323) may be connected to the component of the medical device. The response assembly (340) may be configured to generate a response in response to a break of the first cable (323).

IPC Classes  ?

• B66D 3/04 - Pulley blocks or like devices in which force is applied to a rope, cable or chain, which passes over one or more pulleys, e.g. to obtain mechanical advantage

Abstract

The present disclosure relates to a collimator. The collimator may include a motor, a transmission unit having a first end and a second end, and a leaf unit having a leaf. The first end of the transmission unit may be connected to the motor and the second end of the transmission unit may be connected to the leaf The present disclosure also relates to a collimator system. The collimator system may include a leaf module having a leaf a driving module having a motor configured to drive the leaf, and a processing module to generate a movement profile of the leaf. The movement profile of the leaf may include a first speed during a first stage, a second speed of the leaf during a second stage, and a third speed of the leaf during a third stage.

IPC Classes  ?

• A61N 5/10 - X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy